No special access issues
Well known local spot; two sides of an old railway bridge bisected by an country road. Font grading by UKC user Spidermonkey09 and description as shown on Leicestershirebouldering.co.uk:
"The childhood training ground of both Johnny Dawes and Jerry Moffatt. The bridge is located close to Leicestershire-Northamptonshire border near Slawston and is the only decent climbing venue around these parts. Its two walls are composed of a mixture of gritstone, ironstone and blue bricks; nobody knows why it was built like this and no other bridges on the same line are built like it."